Failing test for IsPositional(N)

Author: rstarkov

Tests/CommandLineTests.cs

@@ -148,6 +148,7 @@ public static void TestPostBuild()
         CommandLineParser.PostBuildStep<Test1Cmd>(reporter);
         CommandLineParser.PostBuildStep<Test2Cmd>(reporter);
         CommandLineParser.PostBuildStep<Test3Cmd>(reporter);
+        CommandLineParser.PostBuildStep<Test5Cmd3>(reporter);
     }
 
     [Fact]

Tests/Test5.cs

@@ -15,3 +15,26 @@ class Test5Cmd2
     [IsPositional(1), IsMandatory] public int One;
     [IsPositional(0)] public int Two;
 }
+
+class Test5Cmd3
+{
+    [IsPositional, IsMandatory] public Test5Cmd3_CmdBase Cmd;
+}
+
+[CommandGroup]
+abstract class Test5Cmd3_CmdBase
+{
+    [IsPositional(1), IsMandatory] public string One;
+    [IsPositional(1), IsMandatory] public Test5Cmd3_SubCmdBase Sub;
+}
+
+[CommandName("cmd")]
+class Test5Cmd3_Cmd : Test5Cmd3_CmdBase
+{
+    [IsPositional(0), IsMandatory] public string Two;
+}
+
+[CommandGroup]
+abstract class Test5Cmd3_SubCmdBase { }
+[CommandName("sub")]
+class Test5Cmd3_SubCmd : Test5Cmd3_SubCmdBase { }